The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

Croatia's towering concrete blossom grows from the site of a World War II concentration camp.

This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

Oriental bazaar in the heart of Sarajevo.

The place where World War I began.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

This abandoned Slovenian military barracks has become a punky-political art squat.

A whimsical bridge adorned with decorative dragons.

This massive subterranean fissure is known as the "underground Grand Canyon."

This one-time health resort was used by aristocrats around the world.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

The studio built by fascists in the hopes of "reviving the film industry" with the occasional propaganda film opportunity thrown in.

A stunning bridge that appears as if it's lunging to the shore, and has a legend of a devilish architect.

An Italian geologic wonder that served as the inspiration for the landscape of Dante's hell.

A lover's walk between hilltop towns, decorated with graffiti love notes.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.